From d6b6fff7f723d9f7b3ad8a9bf5b7e8dbd5f22b8f Mon Sep 17 00:00:00 2001 From: Andreas Schneider Date: Tue, 16 Oct 2018 08:46:06 +0200 Subject: [PATCH] cmake: Only check for -Wno-gnu-zero-variadic-macro-arguments with clang Signed-off-by: Andreas Schneider --- CompilerChecks.cmake | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/CompilerChecks.cmake b/CompilerChecks.cmake index be428dc2..3b36cc6c 100644 --- a/CompilerChecks.cmake +++ b/CompilerChecks.cmake @@ -51,7 +51,10 @@ if (UNIX) add_c_compiler_flag("-Werror=format-security" SUPPORTED_COMPILER_FLAGS) # Allow zero for a variadic macro argument - add_c_compiler_flag("-Wno-gnu-zero-variadic-macro-arguments" SUPPORTED_COMPILER_FLAGS) + string(TOLOWER "${CMAKE_C_COMPILER_ID}" _C_COMPILER_ID) + if ("${_C_COMPILER_ID}" STREQUAL "clang") + add_c_compiler_flag("-Wno-gnu-zero-variadic-macro-arguments" SUPPORTED_COMPILER_FLAGS) + endif() add_c_compiler_flag("-fno-common" SUPPORTED_COMPILER_FLAGS)